Benjamin c



v(No Model.)

B. C. VANDUZEN. Pump. NQ.- 24L573. Patented May/17,1881.

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`\ UNITED STATES f SPECIFICATION forming part of Letters ToNall whom itmay concern:

Be thknown that I, BENJAMIN C. VANDU- einnati, in the county of Hamiltonhipo, have invented certain new oveinents in Force-Pumps 5` and tobe afull,A

orkingpartwmand is east opening, throu glu which testare applieddand reoain or xed cylinder, east at the pywith alateral water-way, C, on oneside, anda lug,`F, on the opposite side, to afford llneans forconnecting it to the suspendingange. This connection is formed on oneside hediseliarge-tnbe D screwing,` into the part on the opposite side yl `"tween 1the size ofthe plunger` y "the area of theother.

plunger, `both supported inany feonneotion` f `giiange A, the #l ing ofsuiei PATENT OFFICE.M

BENJAMIN O. VANDUZEN, OF OlNOINNATI, OHIO.

PUMP.

Patent No. 241,573, dated May 17, 1881.

Application filed November 4, 1880. (No model.)

by screwing its lower end into the lug F sufficiently far to allow itsupper end to swing under the iiange A when the rod is turned to screwinto said flange and be partially unsorewed from the lug. By thisconstruction the use of nuts is avoided and the whole oonon simplifiedand ohenpened. The rod `linderiD"support the `lnain `Cylinder l lft``\"f` one @he irtheldi QHl; M M c K" 1ST the upper ruim?? i ed@ of1 elesser` diameter bh inder,"fproportionedQtoth L is the lower plungvlnanner `nponthe plunger-rod `NQ y 1d oftheplunger@iseonneeted y .e19MB@ rldlowi tlierleonyenient inea p .l y y y Herder I0` nplyenl fielerem in o .y l .l i nd upper cylinder fori anyypurpose without `85`ldisturbing the lowereylinder or breaking the l v between` it andthesuspendinglatter is east with a central openent diameter to allow theupper lcylinder' to pass through it. This opening is 9o closed with theeap P, east with a series of peripheral hooks to enter notches formed inthe inner circumference of the flange A. Vhen the cap is turned thehooks pass under the flange and look the eap in place.

The lower end of the upper cylinder, K, is constructed with a flange, K,to fit upon the top of the lower cylinder, B, when the pump is puttogether, suitable packing' being interposed to close the joint. The topof the oylloo inder K is connected by a pipe, Q, with the e ge A, and iE UTbeserewrodislapplied nut R in theoenter of the cap sai

